fix some header file related issues preventing lcr from compiling
diff --git a/openbsc/src/libbsc/gsm_04_08_utils.c b/openbsc/src/libbsc/gsm_04_08_utils.c
index 17bce85..92335f2 100644
--- a/openbsc/src/libbsc/gsm_04_08_utils.c
+++ b/openbsc/src/libbsc/gsm_04_08_utils.c
@@ -190,7 +190,7 @@
 	return GSM_LCHAN_SDCCH;
 }
 
-enum gsm_chreq_reason_t get_reason_by_chreq(uint8_t ra, int neci)
+int get_reason_by_chreq(uint8_t ra, int neci)
 {
 	int i;
 	int length;